1.1 --- a/Hardware/Parameter.cs	Thu Aug 12 20:53:27 2010 +0000
     1.2 +++ b/Hardware/Parameter.cs	Sun Aug 15 14:46:58 2010 +0000
     1.3 @@ -41,7 +41,7 @@
     1.4  
     1.5  namespace OpenHardwareMonitor.Hardware {
     1.6  
     1.7 -  public struct ParameterDescription {
     1.8 +  internal struct ParameterDescription {
     1.9      private string name;
    1.10      private string description;
    1.11      private float defaultValue;    
    1.12 @@ -60,7 +60,7 @@
    1.13      public float DefaultValue { get { return defaultValue; } }
    1.14    }
    1.15  
    1.16 -  public class Parameter : IParameter {
    1.17 +  internal class Parameter : IParameter {
    1.18      private ISensor sensor;
    1.19      private ParameterDescription description;
    1.20      private float value;
    1.21 @@ -129,8 +129,9 @@
    1.22      }
    1.23  
    1.24      public void Accept(IVisitor visitor) {
    1.25 -      if (visitor != null)
    1.26 -        visitor.VisitParameter(this);
    1.27 +      if (visitor == null)
    1.28 +        throw new ArgumentNullException("visitor");
    1.29 +      visitor.VisitParameter(this);
    1.30      }
    1.31  
    1.32      public void Traverse(IVisitor visitor) { }